Term ends Feb 17, 2037 · High confidence
20-year base term ends Feb 17, 2037
Held by Merck & Cie
Filed May 17, 2019 as application 16/415,321 · Granted Feb 25, 2020
Base term, 20 years from filing
Today
2017
2037
Clock starts
Feb 17, 2017
Feb 17, 2017
Term ends
Feb 17, 2037
Feb 17, 2037
Granted
Feb 25, 2020
Feb 25, 2020
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
6
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 17, 2017, when application 15/435,787, the earliest non-provisional in its chain, was filed (this one was filed May 17, 2019) | Feb 17, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 17, 2037 | High confidence |
This family
| Application 62/296,296 | Provisional application no patent term | no patent term |
| US 10,059,710 | In force Feb 2037 | Feb 2037 |
| US 10,336,758 | In force Feb 2037 | Feb 2037 |
| US 10,570,134 | this patent Feb 2037 | Feb 2037 |
| US 11,306,094 | In force Feb 2037 | Feb 2037 |
| US 12,103,930 | In force Feb 2037 | Feb 2037 |
The applications whose file history this site holds. The family may have others.
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
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Alerts on its grants, lapses and transfers.
What's changing
Feb 2037
Term ends Feb 17, 2037. Maintenance fees still fall due before then
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2020 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.